Combined cooker and heater.



A. CARPENTER. COMBINED COOKER AND HEATER.

APPLIUATION FILED NOV. 20. 1911.

1,043,667. Patented Nov. 5, 1912.

2 SHEETS-SHEET l.

A. CARPIEIIITE'IR.

COMBINED COOKER AND HEATER.

\PPLIOATION FILED NOV. 20.1911.

1,043,667. Patented Nov. 5, 1912.

2 SHEETS-SHEET 2.

' 1k F9 i8 nucwtor UNITED STATES PATENT OFFICE.

ADAM CARPENTER, OF ELMIRA, NEW YORK.

COMBINED COOKER AND HEATER.

To all whom it may concern Be it known that I, ADAM CARPENTER, a citizenof the United States, residing at Elmira, in the county of Chemung andState of New York, have invented certain new and useful Improvements inCombined Cookers and Heaters, of which the following is a specification.

This invention relates broadly to combined cookers and heaters, theobject thereof being to provide a construction adapted for use with allof the advantages of the ordinary type of tireless cooker but having.

' tight manner.

The invention also resides in certain details of construction, theadvantages of which will appear more fully hereinafter.

For a full understanding of the present invention, reference is to behad to the following description and to the accompanying drawings, inwhich- Figure 1 is a side elevation of a combined cooker and heaterembodying the essential features of the invention. Fig. 2 1s a sectionalview taken on the line 2 2 of Fig. 1.

Fig. 3 is a bottom plan view of the device showing more clearly themeans for connecting the casing with its base section. Fig. 4 is avertical longitudinal sectional view bringing out the details-0f theconstruction of the interior parts. Fig. 5 is a side view of the basesection of the device alone.

.lhroughout the following detailed description and on the severalfigures of the drawings, similar parts are referred to by like referencecharacters.

' Referring to the drawings, the combined cooker and heater of thisinvention comprises the base 1 and the casing Qmounted on said base,said casing comprising preferably a double walled structure, the innerSpecification of Letters Patent.

Application filed November 20, 1911.

Serial No. 661,298.

and outer walls being designated a and 6, re-' spectively. The spacebetween the walls of the casing 2. has the air withdrawn therestitutesan extension of a doublebottom 4,-

the space between the walls of the parts 3 and 4 constituting a vacuumchamber in the same manner as the space between the walls of the casing2. On the bottom 4 is a heater 5 of any conventional form, the samebeing preferably of the electric type supplied with current by the wires6 connected with coils of said heater, and leading to a suitable sourceof electricity. On the under side of the bottom 4 is provided adepending bearing 7 in which is mounted thev inner end portion of anoperating shaft 8, the outer portion of which extends through an openingforming a bearing at aside of the base, said shaft carrying a hand wheel9 at its outer extremity.

.A locking plate 10 ,is arranged beneath the bottom 4,- and is providedwith a plural ity of vertical locking members 11 projecting upwardlythrough openings at the upper portion of the base 1 and having catches12 to engage with catches 16 on the lower end of the casing 2. At itscentral ortion, the locking plate 10 has oppositely inclined camportions 13 formed preferabiy by pressing. the body of theplate'upwardly at its central portiorn Atoppositc sides of the bearing 7are wedges 14 movable between the cams 13 and the bottom 4 and having:threaded openings therein to receive the revcrsely threaded portions 8'of the shaft 8. The wedges 14 have pin and slotconnections 15 with thecams 13 and it will be apparent that when the shaft 8 is turned in onedirection, the wedges 14; move toward one another, riding between theparts 4. and 13 and thereby imparting downward relative movement to thelock plate 10 causing the locking members 11 of the latter to cooperatewith the catches 16, thereby posi- -tivel drawin the casin 2 down u onthe base 1 and establishing between the flan e 3 and said casing, an airand Water tiglit connection.

T9 reinforce the inner wall a of the casing 2 at the point of contact ofthe upper Patented Nov. 55,1912.

portion of the flange 3 therewith, the former has a reinforcing band 17applied thereto between said walls a and b.

In order to permit of ready separation of the casing 12 from its base, amovement 01*- the shaft 8 opposite to that before mentioned will actuatethe wedges 14 in such a manner as to permit of ready disengagement ofthe parts 12 and 16.

If desired, a certain amount of water may be placed in the casing andwill be contained in the space surrounded by the flange 3.

It 1s contemplated to use in connection with the cooker and heater, aregulator of the thermostatic or other type and a steam pressure pipe18' leads into the casing, to permit the pressure medium to pass to theregulator, which will be connected with the cation for patent filedNovember 15, 1910,

Serial Number 592.501.

I do not wish to be limited in any way in the practical embodiment of myinvention, to the us of any special type of heater because any suitabletype of heater other than that illustrated might be employed for thepurposesof the invention. It will be apparent that, according to thearrangement of the cooker, as above described, the heater is located sothat the casing 5. inclosing same will be in direct contact with anywater retained at the base of the device, thereby increasing theefficiency of the invention in a desirable manner. On the casing 5furthermore, may rest the tray 19 supported by legs 20, or otherwisesupported so as to be convenient for removal. Articles of food willpreferably be placed upon the tray in the cooking operation.

It will be noted that the locking arms 11 are preferably carried byextensions 10 of the plate 10, being struck up from said extensions, asshown clearly in the drawings. In order to increase the rigidity of theextensions 10, they will preferably be formed with longitudinal flanges10" atthcir edges. The depending bearing 7 snugly fits in a centralopening 21 in the plate 10 so-as toproperly guide said plate and thelocking members 11 when moved relatively to the base and easing 2.

Anannular rib 3 formed by pressing out wardly the outer wall of theflange 3, serves to assist-in centeringthe casing 2 upon the base.

Various modifications of the detail features of the invention may bemade in accordance with the spirit thereof and espccially in applyingthe locking means hereinbefore referred to in proper cooperation withrelatively movable parts of the cooker and heater.

It will be understood that the cooker herein described may be readilyemployed for holding articles of cooled food since the invention will beas effective in operation in either condition according to the resultdesired.

Having thus described the invention, what is claimed as new is:

1. In a cooker of the class described. the combination of a basesection, a casing mounted thereon, means for positiwly connecting saidparts comprising locking members mounted on one ofthe parts and adaptedfor engagement with the other part. an opcrating shaft, and means onsaid shaft for imparting opposite movements to each ml said lockingmembers to effect positive con nection and release of the casing and hawsection.

2. In a. cooker of the class described, the combination of a basesection, a casing mounted thereon, means for positively connecting saidpart-s comprising locking members mounted on one of the parts andadapted for engagement with the other part,

wedges engaging one of the parts aforesaid and arranged for actuatingsaid locking members, and an operating device for moving said wedges tothereby control the lock ing action ofthe locking members.

. 3. In a cooker of the class described, the combination of a basesection, a casing mounted thereon, means for positively connecting saidparts comprising locking members mounted on one of the parts and adaptedfor engagement with the other part, a plate carrying the locking membersand in spaced relation to the base section, wedges operating between thebase section and said plate, and a shaft for actuating said wedges tothereby impart. movement to the locking members controlling the lockingaction of the latter.

4L In a combined cooker and heater, a base, a casing supported thereonand having catches adjacent to the base, locking members adapted toengage said catches, a plate beneath the base connected to the saidlocking members and-having opposite. cams, and wedges operable incngagen'ient with said cams for controlling the cooperatitm of thelocking members and catches aforesaid.

5. In a combined cooker and heater, :1 casing, a base therefor, a lockplate carried by one of said parts, locking members on said lock platecooperating with the other part and said plate also having camsinclining in opposite direct-ions, wedges movable longitudinally of saidcams, and a shaft having oppositely threaded portions engaging saidwedges for imparting movement to .each wedge in opposite directions tocontrol the operation of the locking members.

(5.ln a combined cooker and heater, a double walled casing a base havinga double walled bottom for said casing, 21 looking plate spaced fromsaid bottom, a guide bearing'on the bottom cooperating with said plate,catches on the casing, locking members on the locking plate cooperatingwith said 'atches, wedges slidable between the bottom aforesaid and thelocking plate and an operating shaft mounted in the said bear- 'ing andconnected with said wedges for actuation of the same to impart movementto the locking members.

7. In a combined cooker and heater, a

double walled casing, a base having a double walled bottom for saidcasing, a locking plate spaced from said bottom, a guide heating on thebottom cooperating with said plate, catches on, the casing, lockingmembers on the locking plate cooperating with said catches, wedgesslidable between the bottom aforesaid and the locking plate, anopeii'ating shaft mounted in the said bearing and connected with saidwedges for actuation of the same to impart movement to the lockingmembers, the locking plate being formed with cams in contact with whichthe wedges operate, and pin and -slot connections between the wedges andsaid cams.

In testimony whereof I allix my signature in presence of two witnesses.

ADAM CARPENTER. W'itnesses G. O. ROSE, H. C. Rome.

